src/jdk.packager/share/classes/jdk/packager/internal/Platform.java
author herrick
Mon, 27 Aug 2018 16:01:38 -0400
branchJDK-8200758-branch
changeset 56869 41e17fe9fbeb
parent 56821 565d54ca1f41
child 56982 e094d5483bd6
permissions -rw-r--r--
8208522: removed unreferenced class and minor formatting of java source Reviewed-by: almatvee
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/*
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 * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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package jdk.packager.internal;
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import java.util.regex.Pattern;
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/**
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 * Use <code>Platform</code> to detect the operating system
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 * that is currently running.
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 *
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 * Example:
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 *
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 *  Platform platform = Platform.getPlatform();
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 *
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 *  switch(platform) {
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 *    case Platform.MAC: {
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 *      //TODO Do something
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 *      break;
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 *    }
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 *    case Platform.WINDOWS:
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 *    case Platform.LINUX: {
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 *      //TODO Do something else
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 *    }
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 *  }
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 *
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 */
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public enum Platform {UNKNOWN, WINDOWS, LINUX, MAC, SOLARIS;
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    private static final Platform platform;
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    private static final int majorVersion;
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    private static final int minorVersion;
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    static {
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        String os = System.getProperty("os.name").toLowerCase();
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        if (os.indexOf("win") >= 0) {
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            platform = Platform.WINDOWS;
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        }
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        else if (os.indexOf("nix") >= 0 || os.indexOf("nux") >= 0) {
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            platform = Platform.LINUX;
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        }
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        else if (os.indexOf("mac") >= 0) {
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            platform = Platform.MAC;
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        }
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        else if (os.indexOf("sunos") >= 0 || os.indexOf("solaris") >= 0) {
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            platform = Platform.SOLARIS;
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        }
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        else {
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            platform = Platform.UNKNOWN;
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        }
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        String version = System.getProperty("os.version").toString();
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        String[] parts = version.split(Pattern.quote("."));
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        if (parts.length > 0) {
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            majorVersion = Integer.parseInt(parts[0]);
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            if (parts.length > 1) {
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                minorVersion = Integer.parseInt(parts[1]);
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            }
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            else {
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                minorVersion = -1;
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            }
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        }
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        else {
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            majorVersion = -1;
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            minorVersion = -1;
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        }
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    }
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    private Platform() {}
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    public static Platform getPlatform() {
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        return platform;
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    }
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    public static int getMajorVersion() {
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        return majorVersion;
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    }
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    public static int getMinorVersion() {
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        return minorVersion;
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    }
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}